1 files changed, 272 insertions, 0 deletions

diff --git a/include/asm-i386/msr.h b/include/asm-i386/msr.h
new file mode 100644
index 000000000000..c76fce8badbb
--- /dev/null
+++ b/include/asm-i386/msr.h
@@ -0,0 +1,272 @@
+#ifndef __ASM_MSR_H
+#define __ASM_MSR_H
+
+/*
+ * Access to machine-specific registers (available on 586 and better only)
+ * Note: the rd* operations modify the parameters directly (without using
+ * pointer indirection), this allows gcc to optimize better
+ */
+
+#define rdmsr(msr,val1,val2) \
+        __asm__ __volatile__("rdmsr" \
+                          : "=a" (val1), "=d" (val2) \
+                          : "c" (msr))
+
+#define wrmsr(msr,val1,val2) \
+        __asm__ __volatile__("wrmsr" \
+                          : /* no outputs */ \
+                          : "c" (msr), "a" (val1), "d" (val2))
+
+#define rdmsrl(msr,val) do { \
+        unsigned long l__,h__; \
+        rdmsr (msr, l__, h__);  \
+        val = l__;  \
+        val |= ((u64)h__<<32);  \
+} while(0)
+
+static inline void wrmsrl (unsigned long msr, unsigned long long val)
+{
+        unsigned long lo, hi;
+        lo = (unsigned long) val;
+        hi = val >> 32;
+        wrmsr (msr, lo, hi);
+}
+
+/* wrmsr with exception handling */
+#define wrmsr_safe(msr,a,b) ({ int ret__;                                               \
+        asm volatile("2: wrmsr ; xorl %0,%0\n"                                          \
+                     "1:\n\t"                                                           \
+                     ".section .fixup,\"ax\"\n\t"                                       \
+                     "3:  movl %4,%0 ; jmp 1b\n\t"                                      \
+                     ".previous\n\t"                                                    \
+                     ".section __ex_table,\"a\"\n"                                      \
+                     "   .align 4\n\t"                                                  \
+                     "   .long  2b,3b\n\t"                                              \
+                     ".previous"                                                        \
+                     : "=a" (ret__)                                                     \
+                     : "c" (msr), "0" (a), "d" (b), "i" (-EFAULT));\
+        ret__; })
+
+#define rdtsc(low,high) \
+     __asm__ __volatile__("rdtsc" : "=a" (low), "=d" (high))
+
+#define rdtscl(low) \
+     __asm__ __volatile__("rdtsc" : "=a" (low) : : "edx")
+
+#define rdtscll(val) \
+     __asm__ __volatile__("rdtsc" : "=A" (val))
+
+#define write_tsc(val1,val2) wrmsr(0x10, val1, val2)
+
+#define rdpmc(counter,low,high) \
+     __asm__ __volatile__("rdpmc" \
+                          : "=a" (low), "=d" (high) \
+                          : "c" (counter))
+
+/* symbolic names for some interesting MSRs */
+/* Intel defined MSRs. */
+#define MSR_IA32_P5_MC_ADDR             0
+#define MSR_IA32_P5_MC_TYPE             1
+#define MSR_IA32_PLATFORM_ID            0x17
+#define MSR_IA32_EBL_CR_POWERON         0x2a
+
+#define MSR_IA32_APICBASE               0x1b
+#define MSR_IA32_APICBASE_BSP           (1<<8)
+#define MSR_IA32_APICBASE_ENABLE        (1<<11)
+#define MSR_IA32_APICBASE_BASE          (0xfffff<<12)
+
+#define MSR_IA32_UCODE_WRITE            0x79
+#define MSR_IA32_UCODE_REV              0x8b
+
+#define MSR_P6_PERFCTR0         0xc1
+#define MSR_P6_PERFCTR1         0xc2
+
+#define MSR_IA32_BBL_CR_CTL             0x119
+
+#define MSR_IA32_SYSENTER_CS            0x174
+#define MSR_IA32_SYSENTER_ESP           0x175
+#define MSR_IA32_SYSENTER_EIP           0x176
+
+#define MSR_IA32_MCG_CAP                0x179
+#define MSR_IA32_MCG_STATUS             0x17a
+#define MSR_IA32_MCG_CTL                0x17b
+
+/* P4/Xeon+ specific */
+#define MSR_IA32_MCG_EAX                0x180
+#define MSR_IA32_MCG_EBX                0x181
+#define MSR_IA32_MCG_ECX                0x182
+#define MSR_IA32_MCG_EDX                0x183
+#define MSR_IA32_MCG_ESI                0x184
+#define MSR_IA32_MCG_EDI                0x185
+#define MSR_IA32_MCG_EBP                0x186
+#define MSR_IA32_MCG_ESP                0x187
+#define MSR_IA32_MCG_EFLAGS             0x188
+#define MSR_IA32_MCG_EIP                0x189
+#define MSR_IA32_MCG_RESERVED           0x18A
+
+#define MSR_P6_EVNTSEL0                 0x186
+#define MSR_P6_EVNTSEL1                 0x187
+
+#define MSR_IA32_PERF_STATUS            0x198
+#define MSR_IA32_PERF_CTL               0x199
+
+#define MSR_IA32_THERM_CONTROL          0x19a
+#define MSR_IA32_THERM_INTERRUPT        0x19b
+#define MSR_IA32_THERM_STATUS           0x19c
+#define MSR_IA32_MISC_ENABLE            0x1a0
+
+#define MSR_IA32_DEBUGCTLMSR            0x1d9
+#define MSR_IA32_LASTBRANCHFROMIP       0x1db
+#define MSR_IA32_LASTBRANCHTOIP         0x1dc
+#define MSR_IA32_LASTINTFROMIP          0x1dd
+#define MSR_IA32_LASTINTTOIP            0x1de
+
+#define MSR_IA32_MC0_CTL                0x400
+#define MSR_IA32_MC0_STATUS             0x401
+#define MSR_IA32_MC0_ADDR               0x402
+#define MSR_IA32_MC0_MISC               0x403
+
+/* Pentium IV performance counter MSRs */
+#define MSR_P4_BPU_PERFCTR0             0x300
+#define MSR_P4_BPU_PERFCTR1             0x301
+#define MSR_P4_BPU_PERFCTR2             0x302
+#define MSR_P4_BPU_PERFCTR3             0x303
+#define MSR_P4_MS_PERFCTR0              0x304
+#define MSR_P4_MS_PERFCTR1              0x305
+#define MSR_P4_MS_PERFCTR2              0x306
+#define MSR_P4_MS_PERFCTR3              0x307
+#define MSR_P4_FLAME_PERFCTR0           0x308
+#define MSR_P4_FLAME_PERFCTR1           0x309
+#define MSR_P4_FLAME_PERFCTR2           0x30a
+#define MSR_P4_FLAME_PERFCTR3           0x30b
+#define MSR_P4_IQ_PERFCTR0              0x30c
+#define MSR_P4_IQ_PERFCTR1              0x30d
+#define MSR_P4_IQ_PERFCTR2              0x30e
+#define MSR_P4_IQ_PERFCTR3              0x30f
+#define MSR_P4_IQ_PERFCTR4              0x310
+#define MSR_P4_IQ_PERFCTR5              0x311
+#define MSR_P4_BPU_CCCR0                0x360
+#define MSR_P4_BPU_CCCR1                0x361
+#define MSR_P4_BPU_CCCR2                0x362
+#define MSR_P4_BPU_CCCR3                0x363
+#define MSR_P4_MS_CCCR0                 0x364
+#define MSR_P4_MS_CCCR1                 0x365
+#define MSR_P4_MS_CCCR2                 0x366
+#define MSR_P4_MS_CCCR3                 0x367
+#define MSR_P4_FLAME_CCCR0              0x368
+#define MSR_P4_FLAME_CCCR1              0x369
+#define MSR_P4_FLAME_CCCR2              0x36a
+#define MSR_P4_FLAME_CCCR3              0x36b
+#define MSR_P4_IQ_CCCR0                 0x36c
+#define MSR_P4_IQ_CCCR1                 0x36d
+#define MSR_P4_IQ_CCCR2                 0x36e
+#define MSR_P4_IQ_CCCR3                 0x36f
+#define MSR_P4_IQ_CCCR4                 0x370
+#define MSR_P4_IQ_CCCR5                 0x371
+#define MSR_P4_ALF_ESCR0                0x3ca
+#define MSR_P4_ALF_ESCR1                0x3cb
+#define MSR_P4_BPU_ESCR0                0x3b2
+#define MSR_P4_BPU_ESCR1                0x3b3
+#define MSR_P4_BSU_ESCR0                0x3a0
+#define MSR_P4_BSU_ESCR1                0x3a1
+#define MSR_P4_CRU_ESCR0                0x3b8
+#define MSR_P4_CRU_ESCR1                0x3b9
+#define MSR_P4_CRU_ESCR2                0x3cc
+#define MSR_P4_CRU_ESCR3                0x3cd
+#define MSR_P4_CRU_ESCR4                0x3e0
+#define MSR_P4_CRU_ESCR5                0x3e1
+#define MSR_P4_DAC_ESCR0                0x3a8
+#define MSR_P4_DAC_ESCR1                0x3a9
+#define MSR_P4_FIRM_ESCR0               0x3a4
+#define MSR_P4_FIRM_ESCR1               0x3a5
+#define MSR_P4_FLAME_ESCR0              0x3a6
+#define MSR_P4_FLAME_ESCR1              0x3a7
+#define MSR_P4_FSB_ESCR0                0x3a2
+#define MSR_P4_FSB_ESCR1                0x3a3
+#define MSR_P4_IQ_ESCR0                 0x3ba
+#define MSR_P4_IQ_ESCR1                 0x3bb
+#define MSR_P4_IS_ESCR0                 0x3b4
+#define MSR_P4_IS_ESCR1                 0x3b5
+#define MSR_P4_ITLB_ESCR0               0x3b6
+#define MSR_P4_ITLB_ESCR1               0x3b7
+#define MSR_P4_IX_ESCR0                 0x3c8
+#define MSR_P4_IX_ESCR1                 0x3c9
+#define MSR_P4_MOB_ESCR0                0x3aa
+#define MSR_P4_MOB_ESCR1                0x3ab
+#define MSR_P4_MS_ESCR0                 0x3c0
+#define MSR_P4_MS_ESCR1                 0x3c1
+#define MSR_P4_PMH_ESCR0                0x3ac
+#define MSR_P4_PMH_ESCR1                0x3ad
+#define MSR_P4_RAT_ESCR0                0x3bc
+#define MSR_P4_RAT_ESCR1                0x3bd
+#define MSR_P4_SAAT_ESCR0               0x3ae
+#define MSR_P4_SAAT_ESCR1               0x3af
+#define MSR_P4_SSU_ESCR0                0x3be
+#define MSR_P4_SSU_ESCR1                0x3bf    /* guess: not defined in manual */
+#define MSR_P4_TBPU_ESCR0               0x3c2
+#define MSR_P4_TBPU_ESCR1               0x3c3
+#define MSR_P4_TC_ESCR0                 0x3c4
+#define MSR_P4_TC_ESCR1                 0x3c5
+#define MSR_P4_U2L_ESCR0                0x3b0
+#define MSR_P4_U2L_ESCR1                0x3b1
+
+/* AMD Defined MSRs */
+#define MSR_K6_EFER                     0xC0000080
+#define MSR_K6_STAR                     0xC0000081
+#define MSR_K6_WHCR                     0xC0000082
+#define MSR_K6_UWCCR                    0xC0000085
+#define MSR_K6_EPMR                     0xC0000086
+#define MSR_K6_PSOR                     0xC0000087
+#define MSR_K6_PFIR                     0xC0000088
+
+#define MSR_K7_EVNTSEL0                 0xC0010000
+#define MSR_K7_EVNTSEL1                 0xC0010001
+#define MSR_K7_EVNTSEL2                 0xC0010002
+#define MSR_K7_EVNTSEL3                 0xC0010003
+#define MSR_K7_PERFCTR0                 0xC0010004
+#define MSR_K7_PERFCTR1                 0xC0010005
+#define MSR_K7_PERFCTR2                 0xC0010006
+#define MSR_K7_PERFCTR3                 0xC0010007
+#define MSR_K7_HWCR                     0xC0010015
+#define MSR_K7_CLK_CTL                  0xC001001b
+#define MSR_K7_FID_VID_CTL              0xC0010041
+#define MSR_K7_FID_VID_STATUS           0xC0010042
+
+/* extended feature register */
+#define MSR_EFER                        0xc0000080
+
+/* EFER bits: */
+
+/* Execute Disable enable */
+#define _EFER_NX                        11
+#define EFER_NX                         (1<<_EFER_NX)
+
+/* Centaur-Hauls/IDT defined MSRs. */
+#define MSR_IDT_FCR1                    0x107
+#define MSR_IDT_FCR2                    0x108
+#define MSR_IDT_FCR3                    0x109
+#define MSR_IDT_FCR4                    0x10a
+
+#define MSR_IDT_MCR0                    0x110
+#define MSR_IDT_MCR1                    0x111
+#define MSR_IDT_MCR2                    0x112
+#define MSR_IDT_MCR3                    0x113
+#define MSR_IDT_MCR4                    0x114
+#define MSR_IDT_MCR5                    0x115
+#define MSR_IDT_MCR6                    0x116
+#define MSR_IDT_MCR7                    0x117
+#define MSR_IDT_MCR_CTRL                0x120
+
+/* VIA Cyrix defined MSRs*/
+#define MSR_VIA_FCR                     0x1107
+#define MSR_VIA_LONGHAUL                0x110a
+#define MSR_VIA_RNG                     0x110b
+#define MSR_VIA_BCR2                    0x1147
+
+/* Transmeta defined MSRs */
+#define MSR_TMTA_LONGRUN_CTRL           0x80868010
+#define MSR_TMTA_LONGRUN_FLAGS          0x80868011
+#define MSR_TMTA_LRTI_READOUT           0x80868018
+#define MSR_TMTA_LRTI_VOLT_MHZ          0x8086801a
+
+#endif /* __ASM_MSR_H */